When BAO data are added to CMB, that means when we consider the combination CMB+BAO (see the third column of tab:LCDM), we see that the \(\Omega _K\)  becomes consistent to the spatially flat Universe and the Hubble constant goes up leading to Planck's \(\Lambda \) CDM value. However, this result is obtained with the combination of datasets in disagreement at more than \(3\sigma \)  [1]}, [2]}, [3]}, making the combination CMB+BAO not safe and the results are not completely reliable.
The results for CMB+Pantheon and CMB+BAO+Pantheon remain almost similar unlike a mild lower value of the Hubble constant in the CMB+Pantheon case (\(H_0 = 65.2_{-4.1}^{+2.1}\)  km/s/Mpc at 68% CL for CMB+Pantheon) but in both the cases, the spatial flatness is found to be consistent with these data.
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